Finding the Fourth Proportional to 130,150.63, 179,606.60 and 72,789.30

Step by Step Solution

1. Step 1: Write the proportion equation
   130,150.63 : 179,606.60 = 72,789.30 : x
2. Step 2: Convert to fraction form
   130,150.63/179,606.60 = 72,789.30/x
3. Step 3: Cross multiply
   130,150.63x = 179,606.60 × 72,789.30
4. Step 4: Simplify right side
   130,150.63x = 13,073,438,598.39
5. Step 5: Solve for x
   x = 13,073,438,598.39/130,150.63
6. Step 6: Final answer
   x = 100,448.52